Regex Editor & Tester

Matches CSS special characters: a dot followed by a digit (decimal point in numbers), colons (e.g., in pseudo-selectors or declarations), and forward slashes (e.g., in URLs or values). This regex is useful for tokenizing CSS strings, identifying selectors, delimiters, or separating parts of a stylesheet. The positive lookahead ensures the dot is treated as a decimal point rather than a class selector.